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D. Banic, G. Turkalj, D. Lanc, S. Kvaternik Simonetti, "Shear deformable beam model for stability analysis of beam-type structures with composite thin-walled cross sections", in B.H.V. Topping, J. Kruis, (Editors), "Proceedings of the Fourteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 3, Paper 15.3, 2022, doi:10.4203/ccc.3.15.3

Keywords: thin-walled, composite cross-section, beam model, buckling, large displacement, nonlinear stability analysis.

Abstract

This paper presents a shear deformable numerical model for nonlinear stability analysis of beam-type structures. The incremental equilibrium equations for a straight thin-walled beam element are derived within the framework of updated Lagrangian formulation and the nonlinear displacement field of cross-sections, which accounts for the restrained warping and the large rotations effects. Shear deformation effects are accounted for the composite cross-section considering bending-bending and bending-warping torsion coupling effects. Cross-section properties are calculated based on the reference modulus, with ability to model different material configurations. A numerical algorithm for calculation of the geometric properties of composite cross-section is developed. Various material configurations are considered. Several benchmark examples are demonstrated for verification purposes. The obtained results indicate that the proposed model can be classified as shear locking free one.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 3 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: B.H.V. Topping and J. Kruis Paper 15.3 Shear deformable beam model for stability analysis of beam-type structures with composite thin-walled cross sections D. Banic, G. Turkalj, D. Lanc and S. Kvaternik Simonetti University of Rijeka, Faculty of Engineering Rijeka, Croatia doi:10.4203/ccc.3.15.3 Full Bibliographic Reference for this paper D. Banic, G. Turkalj, D. Lanc, S. Kvaternik Simonetti, "Shear deformable beam model for stability analysis of beam-type structures with composite thin-walled cross sections", in B.H.V. Topping, J. Kruis, (Editors), "Proceedings of the Fourteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 3, Paper 15.3, 2022, doi:10.4203/ccc.3.15.3 Keywords: thin-walled, composite cross-section, beam model, buckling, large displacement, nonlinear stability analysis. Abstract This paper presents a shear deformable numerical model for nonlinear stability analysis of beam-type structures. The incremental equilibrium equations for a straight thin-walled beam element are derived within the framework of updated Lagrangian formulation and the nonlinear displacement field of cross-sections, which accounts for the restrained warping and the large rotations effects. Shear deformation effects are accounted for the composite cross-section considering bending-bending and bending-warping torsion coupling effects. Cross-section properties are calculated based on the reference modulus, with ability to model different material configurations. A numerical algorithm for calculation of the geometric properties of composite cross-section is developed. Various material configurations are considered. Several benchmark examples are demonstrated for verification purposes. The obtained results indicate that the proposed model can be classified as shear locking free one. download the full-text of this paper (PDF, 6 pages, 406 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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